1155055116 has 48 divisors (see below), whose sum is σ = 2771371008. Its totient is φ = 374198400.

The previous prime is 1155055093. The next prime is 1155055171. The reversal of 1155055116 is 6115505511.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129001 + ... + 137663.

It is an arithmetic number, because the mean of its divisors is an integer number (57736896).

Almost surely, 2^1155055116 is an apocalyptic number.

It is an amenable number.

1155055116 is an abundant number, since it is smaller than the sum of its proper divisors (1616315892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155055116 is a wasteful number, since it uses less digits than its factorization.

1155055116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8982 (or 8980 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The square root of 1155055116 is about 33986.1018064738. The cubic root of 1155055116 is about 1049.2224374812. Note that the first 3 decimals are identical.

It can be divided in two parts, 11550 and 55116, that added together give a palindrome (66666).

The spelling of 1155055116 in words is "one billion, one hundred fifty-five million, fifty-five thousand, one hundred sixteen".